外国→｜Forests give us shade, quiet and one of the harder challenges in the fight against climate change. Even as we humans count on forests to soak up a good share of the…〔08-05〕

  →句子｜As we know, massive destruction of environment has brought about negative effects and even poses a great threat to man's existence…〔06-18〕

  →句子｜As we know, massive destruction of environment has brought about negative effects and even poses a great threat to man's existence…〔05-09〕

  →高中｜As is often read in the newspaper reports, wild life especially the rare species is threatened with extinction.…〔08-27〕

  →高中｜污染，人类的严重威胁(Pollution, a Terrible Threat to Mankind)…〔07-16〕

  →高中｜The earth, the only mother of human beings, is now facing a great threat-environmental pollution. Therefore, it is important for a…〔04-22〕

  →新闻｜March 12 (Bloomberg) Chinas accelerating inflation has started to erode household savings, threatening to spur purchases of pro…〔03-12〕

  →新闻｜As much as 16 percent of the U.S. population between the ages of 14 and 49 has genital herpes, according to a government study rel…〔03-11〕